How can I write a Naruto Sai x OC fanfiction?

A chance to change, challenge destiny, make dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish! In the modern world, a young man gains an unconventional system that gives him the power to transform into a fish! With this strange power, he shoots for the stars!

Reborn on an ordinary Shionin of the Uchiha clan, Ryu thought he was going to spend a life of inaction, but he did not expect to bind the sign-in system. Check in at Kannabi Bridge and get reward [Rinnegan ] Check in at Hokage Residence and get reward [Flying Thunder God Jutsu ] Check in at Valley of the End , Get reward [Sage Body ]

Ryu Otsutsuki always wanted an easy life. He... Was not destined for it the moment he was born into this world. Given incredible power, the third son of Kaguya Otsutsuki had to deal with his brothers, and immortality. And now... He promised his brother he'd help him with something... Which was... Troublesome... I hate you Brother! OP OC/Sharingan/Mokuton/Rinnegan/ (COMPLETED)

How I become a Flaming Turkey and how to enjoy it. Oh yeah! I also work for Slutlife Inc for some reason. SI becomes Riser Phenex. Waifu Catalog fic.

Choosing to be reborn into the world of Naruto, a young man sets out on a journey for peace in his own way. Expect my take on a realistic depiction of this world with blood and all, NO HAREM. This isn't my main story just a side project I'm doing to relax so be aware of that. I don't own the Naruto brand/series or the cover art, if you own either and want this story/cover removed just speak up and it will be done.

This is the tale of Kokoro Kanei, a Chunin of Konoha. This fanfic will follow a Kunoichi who is FROM the Naruto world. No reincarnation, no system, nothing. There will be missions, action, romance, and lemons. I have been browsing the Naruto fanfics, and while OP characters are fun, I wanted to write a story about someone who would have been a minor character in the anime. This starts a few years before Naruto becomes a Genin, so the main plot of the anime won't be touched on for a bit. Also, I will not always be following the plot, as shown with relationships between characters. Additional Tags: Action, Female Lead, Futa, Romance, R18